acallahan316 acallahan316
  • 23-05-2023
  • Mathematics
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. Verify the identities: a) csc a tan a = cos a sec² 8 1+cot ²8 = tan²0 b) = cos ß + cos ß tan² ß cos B cot² 1-sin 8 = csc 8+1 sin 9 d)

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